Microwave promoted methylation of plant polysaccharides |
| |
| Authors: | Vandana Singh Ashutosh TiwariDevendra Narayan Tripathi Tulika Malviya |
| |
| Institution: | Department of Chemistry, University of Allahabad, Allahabad 211002, India |
| |
| Abstract: | O-Methylation is of outstanding importance in structural polysaccharide chemistry. A novel method for the methylation of polysaccharides using microwave (MW) irradiation is described. Seed gum from Cyamopsis tetragonolobus (Guar) was fully methylated with dimethyl sulphate and sodium hydroxide using 100% microwave power for 4 min in 68% yield. The completely methylated seed gum thus obtained was hydrolyzed by 70% formic acid followed by 0.5N H2SO4 under full microwave power for 1.16 and 1.66 min, respectively. The partially methylated monosaccharides were separated and identified. |
| |
| Keywords: | Guar gum methylation microwave irradiation hydrolysis methylated monosaccharides |
| 本文献已被 ScienceDirect 等数据库收录！ |
